Low stress, friendly, harmonious, a true team culture.
Some of the people are friendly and competent. It was never great but deteriorated over the last 2 years.
The plant manager must be fair with the employees and honor, doctors notes and don't let the supervisor discriminate against the employees or intimidate them that they're gonna get fired. If they don't listen there's laws and rules follow. They need to respect the law.
Get a new COO who understands the business